HOLYOKE — Police here continue to probe Saturday's double homicide that claimed the lives of a city man and a Chicopee resident, both of whom were shot multiple times near the corner of Chestnut and Sargeant streets.

"It's still under investigation," police Sgt. Richard Stuart said Monday. No arrests have been made, he said.

Capt. Denise Duguay, head of the Holyoke Police Department Criminal Investigation Bureau, said the homicides bring the number of city killings this year to four and follow back-to-back slayings in late May and early June.

Police said Jose Santiago, 20, of Holyoke, and Richard Alequin-Hernandez, 25, of Chicopee, were found in an alleyway next to Chestnut Park around 2 a.m. Saturday. The park is at the corner of Chestnut and Sargeant streets.

Holyoke police are being assisted by Massachusetts State Police detectives assigned to the office of Hampden District Attorney Mark Mastroianni. Authorities have to release details about the fatal shootings, including how many times each man was hit.

Family and friends of the victims erected memorial shrines at the crime scene that included candles, balloons, flowers and messages, including "I love you papa" written in Spanish.

Anyone with information about the killings can reach detectives at (413) 322-6940.

Thirty-five-year-old Danny Rodriguez, of Holyoke, was shot to death on May 28 at 104-106 Bliss St. Five days later, 34-year-old Juan Quinones, of Springfield, was fatally shot behind 16 Cabot St. on June 2.

The city had no homicides in 2012.

MAP showing intersection near where two men were shot to death Saturday in Holyoke: